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Facing problem with Chart Builder

Hello;

  WE are using DeltaV 11.3. We are facing problem with Trends. Before telling you the current problem I would like to brief about the problems wefaced & resolved.

In our Module class, in history collection tags has been assigned as Modulename(e.g. LIC101/PV.CV or TI101/Pv.cv) Due to which we were not getting trends on Chart builder. Then we changed this as Module name/Module type/Pv.cv (e.g LIC101/PID1/pv.cv , TI101/AI1/PV/CV) With this modification we found the Individual Trends that open from Faceplate are not appearing. Then we open D:/DeltaV/DVData/Chart/Lib Location where all the standard windows for the chart are stored. we find the Standard Window used for our Project & Made changes there also for Open Loop(Previous(MOD/PV.CV & NOw( MOD/AI1/PV.CV) & Closed loops(Previous Mod/PV.CV & Now MOD/PID1/PV.CV   Same is applicable for SP.CV & Out.cv). Now Individual trend were appearing correct.

Now In group Trends (In chart Builder ) Open Loop (e.g TI101) Trend  is appearing & giving Historical trend as it is(TI101/AI1/PV.CV) But Closed Loop Trends are still taking path as LIC101/PV.CV) Instead of Taking path as (LIC101/PID1/PV.CV). I am unable to find where shall i make this change so that Close loop trend will also appear on Chart Builder. Pl. help..

ghatevinod
  • Chris
    Just to clarify this post, you said you were having trouble with chart builder, this post refers to the chart build function.
    Try having a look into the dynamo, there is parameters in there for when you right click on the dynamo and "add PV to chart builder". The parameters let chart builder know what parameter to add for PV/SP/OUT (ps_PVpath/ps_SPpath/ps_OUTpath).
    This means that, unfortunately, you have to modify three parameters for every dynamo on every graphic of the closed loop module type.
  • ghatevinod

    In reply to Chris:

    Thanks chris!,
    But as I said & done, we have rectified individual trend problem by identifying & modifying the Standard Trend PHVE File in Chart Library. Also on Chart Builder If Open loop module are taking correct path then why not PID Loops. If we can find the way for modifying this, then there is no need to update from dynamo every time.
  • ghatevinod

    In reply to ghatevinod:

    Dear Friends, Any help..... Pl.
  • Youssef.El-Bahtimy

    In reply to ghatevinod:

    I want to make sure the right terms are being used. When you refer to Chart Builder, you are referring to the DeltaV Operate run time pop-up with that title (or Easy Trend Builder Picture as titled in the corresponding help file.)

    The functions of this graphic utility are not connected to the library chart <--> faceplate name correspondence feature. The utility simply analyzes the datasource configuration of the graphic object (like a datalink) that is selected.

    "The Easy Trend Builder graphic works with any selectable object on a picture. The trend paths are populated from the selectable object’s path." (per the help file)

    If the utility is selecting MODULE/PV instead of MODULE/PID1/PV, it is because the datasource path of the object selected is configured as MODULE/PV.

    You can test this by creating different selectable datalinks on a graphic, one using MODULE/PV and one using MODULE/PID1/PV and you should see a difference in how the utility populates the chart.

    As stated by Chris, you will need to change graphic objects. Other options are to just change historization path to MODULE/PV, or simply edit the path in the launched PHV chart once the Chart Builder utility is done scripting the wrong path.

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